How To Do Regular Maintenance After Installation Of Rolling Bearing
How To Do Regular Maintenance After Installation Of Rolling Bearing
2021年12月26日
Installation And Maintenance Procedures For Thin Wall Deep Groove Ball Bearings
Installation And Maintenance Procedures For Thin Wall Deep Groove Ball Bearings
2021年12月26日

Problems Needing Attention In Installation Dimensional Accuracy Of Thrust Self-Aligning Roller Bearing

Self-Aligning Roller Bearing

Pay attention to the installation force. If there are spaced indentations on the raceway, it indicates that the load has exceeded the elastic limit of the material. Self-Aligning Roller Bearing This is because the static reproduction is still driven by serious impact (such as hitting the bearing with a small axe hammer during installation). The accurate installation method is to apply force only to the ring to be pressed.

Pay attention to the installation direction of thrust self-aligning roller bearing. The bearing has a duck egg circular contact area and only advances on one side to bear the axial thrust. Self-Aligning Roller Bearing When the bearing is assembled in the opposite direction, because the steel ball is located at the edge of the raceway, the loaded surface will sprout grooved wear zone. Because of this, pay attention to the accurate installation direction during installation.

Problems Needing Attention In Installation Dimensional Accuracy Of Thrust Self-Aligning Roller Bearing

Dimensional accuracy of thrust self-aligning roller bearing (items related to shaft and Housing installation):

1. Allowable deviation of inner diameter, outer diameter, width and assembly width;

2. Allowable deviation of inner and outer complex diameter of roller group;

3. Allowable limit value of chamfer size;

4. Allowable variation of width.

Problems needing attention during installation of centripetal thrust ball bearing

Problems Needing Attention During Installation Of Centripetal Thrust Ball Bearing

Centripetal thrust ball bearing is a precision part, so it is required to be quite cautious in use, that is, it uses high-performance bearing. If it is not used properly, Self-Aligning Roller Bearing it can not achieve the expected performance effect, and it is easy to damage the bearing.

Therefore, pay attention to the following matters when using bearings:

However, under some special operating conditions, the centripetal thrust ball bearing can obtain a longer life than the traditional calculation, especially under light load.Self-Aligning Roller Bearing These special operating conditions are the surface damage that may be caused when the rolling surface (track and rolling parts) is effectively separated and limited by a lubricating oil film.Self-Aligning Roller Bearing In fact, under ideal conditions, the so-called permanent bearing life is possible.

Grease lubrication includes the sealing method of filling grease in the sealed bearing in advance, and the filling grease supply method of filling an appropriate amount of Self-Aligning Roller Bearing grease in the shell and replenishing or replacing it at regular intervals. In addition, the centralized grease supply mode with pipes connected to each lubrication point is also adopted for the machinery with multiple centripetal thrust ball bearings that need lubrication.

Grease lubrication can be filled with grease for a long time without supplement, and the structure of Self-Aligning Roller Bearing its sealing device is simple, so it is widely used. Oil lubrication is relatively simple.

The installation and disassembly method of centripetal thrust ball bearing shall be determined according to the structure, size and matching nature with bearing components. Self-Aligning Roller Bearing The pressure of installation and disassembly shall be directly added to the end face of the tight fitting retaining ring, and the pressure cannot be transmitted through the rolling element,

because it will cause indentation on the working surface of the bearing, affect the normal operation of the bearing, and even damage the bearing. Self-Aligning Roller Bearing The cage, sealing ring, dust cover and other parts of the bearing are easy to deform, and the pressure for installing or removing the bearing cannot be added to these parts.

(1) The inner ring of the bearing is tightly matched with the shaft,

and the outer ring is loosely matched with the shell. The bearing can be press installed on the bearing with a press, and then the shaft and the bearing are installed into the shell. During press installation, a soft metal assembly sleeve is padded on the end face of the centripetal thrust ball bearing (copper or soft steel pipe).

The inner diameter of the assembly sleeve shall be slightly larger than the diameter of the journal, and the outer diameter shall be less than the diameter of the retaining edge of the bearing inner diameter to avoid pressing on the cage. When installing bearings in large quantities, a handle can be added to the sleeve.

The centripetal thrust ball bearing shall be installed so that the bearing hole coincides with the center line of the shaft. The deflection of the bearing relative to the shaft is not only difficult to install, but also will cause indentation, journal bending and even fracture of the bearing inner ring.

Where the press is missing or cannot be used, the bearing can be installed with assembly sleeve and small hammer. The hammering force shall be evenly transmitted to the whole circumference of the end face of the bearing ring, so the hammered end face of the assembly sleeve shall be made into a sphere.